单轴双折射滤光片温度不敏感性的研究  

Research of temperature insensitivity of uniaxial birefringence filters

作　　者：高傲 孔勇[1] 夏刚[1] 韩华[1] 王鑫[1] 

机构地区：[1]上海工程技术大学电子电气工程学院,上海201620

出　　处：《激光技术》2016年第4期476-478,共3页Laser Technology

基　　金：国家自然科学基金资助项目(61305014);上海市自然科学基金资助项目(13ZR1455200);上海工程技术大学研究生科研创新资助项目(E109031401037)

摘　　要：为了研究单轴晶体铌酸锂双折射滤光片的温度特性,采用计算机进行数值理论分析,讨论了入射光方向上铌酸锂晶体双折射率和厚度随温度变化的关系,并利用Ultra-6600系列紫外-可见分光光度计对铌酸锂滤光片进行了光谱测量和实验验证。结果表明,在不同波段的滤波带宽,可以找到某些特定的入射角度,使滤光片的中心波长不随温度变化而变化,双折射滤光片温度的稳定性可以保持。此结果说明,可以通过调节入射光方向来提高滤光片的温度稳定性和使用精度。In order to study the temperature-dependant properties of a birefringent filter made by uniaxial crystals LiNbO3 ,the relationship between birefringence and thickness of LiNbO3 with the change of temperature was characterized by numerical simulation. Transmission spectrum of the designed LiNbO3 birefringence filter was tested and investigated by using Ultra-6600 spectrophotometer. The results show that, in different bandwidths, a certain incident angle can be found to make center wavelength of the filter is insensitive to temperature. Further, the birefringence filter maintains temperature stability. The results show that, temperature stability of filter and precision of the LiNbO3 filter can be improved by adjusting the direction of incident light.

关 键 词：光学器件 晶体光学 温度不敏感 铌酸锂双折射滤光片 

分 类 号：O734[理学—晶体学]